Stuck in Fight or Flight? Chiropractic Care Near Me Helps

One question I ask a lot of clients is: "have you heard of the fight or flight response?" The answer is almost always yes. But when I ask if they actually know what it is, the answer is almost always no.

Every single person reading this has experienced this response, probably more often than you realise. In short bursts, it's genuinely useful. It helps your body react fast enough to stay out of immediate danger. Staying in this state for long periods, however, starts to harm your overall health.

Understanding the Branches of Your Nervous System

Your nervous system is made up of many different branches and sub-branches, each playing a distinct role in keeping you alive. The central nervous system, or CNS, consists of the brain and spinal cord. The peripheral nervous system covers all the nerves branching out to supply the rest of the body. The autonomic nervous system, or ANS, sits within the peripheral nervous system and breaks down further into three distinct systems, each with its own job to do beneath your conscious awareness.

The Sympathetic Nervous System and Fight or Flight

The sympathetic nervous system, or SNS, covers almost the entire body and is responsible for the fight or flight response. It regulates blood vessels, causing vasoconstriction in most areas except the coronary vessels and those supplying skeletal muscles. This diverts blood away from non-essential organs and functions, so your heart and skeletal muscles get a larger supply during moments of stress, making it easier for you to fight or flee. It also stays active during calmer moments, playing a role in airway dilation during normal breathing, allowing more air into the body.

The SNS also regulates your immune response, since it innervates organs like the spleen, thymus, and lymph nodes, giving it a direct role in the inflammatory process. During prolonged periods of stress, cortisol levels rise. This is the hormone responsible for regulating inflammatory and immune responses in the body. Over time, elevated cortisol causes your tissues to become desensitised to it, which paradoxically leads to increased inflammation. This is how chronic stress ultimately turns into chronic tissue inflammation.

The Parasympathetic Nervous System's Role in Rest and Digest

The parasympathetic nervous system, or PNS, does the opposite of the SNS and governs the rest and digest state, the setting your body should function in most often when no active stressor is present. Around 75% of the PNS comes from the vagus nerve, which directly influences both cardiac function and digestion. It's responsible for slowing heart rate, bringing blood pressure back to normal, and increasing salivation and peristaltic activity, meaning the involuntary muscles of your gut return to their usual function. Like the SNS, the PNS stays active during breathing too, though its role is to keep the airway rigid so it doesn't collapse as you exhale.

The Enteric Nervous System and Digestive Function

The third branch of the ANS, the enteric nervous system, communicates with both the SNS and PNS. Its main role centres on digestion, controlling muscle contraction and relaxation, secretion and reabsorption, and local blood flow. It works largely through reflexes, and also helps regulate heart rate and immune function.

Understanding how these systems interact can make a real difference in recognising why chronic stress affects so much more than just your mood. Many people who eventually search for chiropractic care near me are, without realising it, looking for help getting out of a prolonged sympathetic state. If you'd like to explore how your own nervous system is functioning, or suspect you might be stuck in a prolonged state of chronic stress, our nervous system overview covers the key branches in more detail.

Frequently Asked Questions

What triggers the fight or flight response?

Any perceived threat or stressor activates the sympathetic nervous system, preparing your body to react quickly through increased heart rate and redirected blood flow.

Can chronic stress really cause physical inflammation?

Yes. Prolonged elevated cortisol eventually desensitises your tissues to it, which can result in increased, ongoing inflammation throughout the body.

What does the parasympathetic nervous system actually do?

It governs the rest and digest state, slowing your heart rate, supporting digestion, and helping your body recover and function normally.

Is the enteric nervous system separate from the rest of the body?

Not entirely. While it largely operates through its own reflexes, it communicates closely with both the sympathetic and parasympathetic systems.

How do I know if I'm stuck in chronic fight or flight?

Common signs include persistent tension, poor sleep, and digestive issues. Booking a free discovery visit can help identify what's really going on.